JOIN gardening correspondent Paul Epsom at Longwood Gardens in Philadelphia to learn about water features and elements that can add to any garden. PLANT a water-wise garden with tips from host Jamie Durie on how to recycle rainwater and put it to good use. GROW a tea garden with Kip Anderson ... then EAT, drink and be merry when chef Michel Nischan stirs up some beverages and recipes using fresh herbs and teas.